You need to pay attention.Theres coral eating crabs and zoos you wont see for months even if you have one.
I kept hearing a tapping in my tank and after ruleing out a mantis or pistol it still took over 1 yr to spothim. IT was a crab that was bothering my zoos. The tapping was him enlarging the spot in the LR
he called home.
# or 4 yrs later you will be learning something. This isnt a setup and forget hobby. This tank will take an understanding of why things are needed and there cause and effect. Like flow m if donr worng it could take over 1 yr to see any ill effects and if you dont know this then you will buy this or that and still wonder why you have this problem. THeres no one way to fix a problem but a miz of things in harmony you want.
Or just send my your money and ill keep showing pics of how it could be. J/K
Sometimes its hard to get this point across.
Learn the bascis and why there needed and it will be alot less expensive and dissoppointing.